1.

The line passes through (1, 0) and \[(-\ 2,\ \sqrt{3})\] makes an angle of ...... with x?axis [RPET 1985]

A. \[{{60}^{o}}\]
B. \[{{120}^{o}}\]
C. \[{{150}^{o}}\]
D. \[{{135}^{o}}\]
Answer» D. \[{{135}^{o}}\]


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